English verb conjugation COULD UNPILE

Regular verb: unpile - unpiled - unpiled

Affirmation

Simple form

I could unpile
you could unpile
he could unpile
we could unpile
you could unpile
they could unpile

V-ing form

I could be unpiling
you could be unpiling
he could be unpiling
we could be unpiling
you could be unpiling
they could be unpiling

Perfect

I could have unpiled
you could have unpiled
he could have unpiled
we could have unpiled
you could have unpiled
they could have unpiled

V-ing perfect

I could have been unpiling
you could have been unpiling
he could have been unpiling
we could have been unpiling
you could have been unpiling
they could have been unpiling

Negation

Simple form

I couldn't unpile
you couldn't unpile
he couldn't unpile
we couldn't unpile
you couldn't unpile
they couldn't unpile

V-ing form

I couldn't be unpiling
you couldn't be unpiling
he couldn't be unpiling
we couldn't be unpiling
you couldn't be unpiling
they couldn't be unpiling

Perfect

I couldn't have unpiled
you couldn't have unpiled
he couldn't have unpiled
we couldn't have unpiled
you couldn't have unpiled
they couldn't have unpiled

V-ing perfect

I couldn't have been unpiling
you couldn't have been unpiling
he couldn't have been unpiling
we couldn't have been unpiling
you couldn't have been unpiling
they couldn't have been unpiling

Interrogative form

Simple form

could I unpile?
could you unpile?
could he unpile?
could we unpile?
could you unpile?
could they unpile?

V-ing form

could I be unpiling?
could you be unpiling?
could he be unpiling?
could we be unpiling?
could you be unpiling?
could they be unpiling?

Perfect

could I have unpiled?
could you have unpiled?
could he have unpiled?
could we have unpiled?
could you have unpiled?
could they have unpiled?

V-ing perfect

could I have been unpiling?
could you have been unpiling?
could he have been unpiling?
could we have been unpiling?
could you have been unpiling?
could they have been unpiling?

Interro-negative form

Simple form

couldn't I unpile?
couldn't you unpile?
couldn't he unpile?
couldn't we unpile?
couldn't you unpile?
couldn't they unpile?

V-ing form

couldn't I be unpiling?
couldn't you be unpiling?
couldn't he be unpiling?
couldn't we be unpiling?
couldn't you be unpiling?
couldn't they be unpiling?

Perfect

couldn't I have unpiled?
couldn't you have unpiled?
couldn't he have unpiled?
couldn't we have unpiled?
couldn't you have unpiled?
couldn't they have unpiled?

V-ing perfect

couldn't I have been unpiling?
couldn't you have been unpiling?
couldn't he have been unpiling?
couldn't we have been unpiling?
couldn't you have been unpiling?
couldn't they have been unpiling?

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